Added surface configuration

hosts/surface/default.nix

@@ -0,0 +1,80 @@
+{ pkgs, ... }:
+
+{
+  imports = [
+    # Import hardware configuration
+    ./hardware-configuration.nix
+
+    # Import modules
+    ../../modules/system/default.nix
+  ];
+
+  settings = {
+    display-manager = "gdm";
+    desktop-environments = {
+      cosmic.enable = false;
+      hyprland.enable = false;
+      gnome.enable = true;
+    };
+    applications = {
+      common.enable = true;
+      steam.enable = false;
+      thunar.enable = false;
+    };
+    services = {
+      docker.enable = false;
+      quickemu.enable = false;
+      sunshine.enable = false;
+      garbage-collection.enable = true;
+    };
+    hardware = {
+      fprint.enable = false;
+      printing.enable = false;
+      bluetooth.enable = true;
+      firewall.enable = true;
+      locale.enable = true;
+    };
+  };
+
+  nix.settings = {
+    experimental-features = [ "nix-command" "flakes" ];
+
+    substituters = [
+      "https://nix-community.cachix.org"
+      "https://cosmic.cachix.org/"
+    ];
+
+    trusted-public-keys = [
+      "cosmic.cachix.org-1:Dya9IyXD4xdBehWjrkPv6rtxpmMdRel02smYzA85dPE="
+    ];
+  };
+
+  # Bootloader.
+  boot.loader.efi.canTouchEfiVariables = true;
+  boot.loader.grub = {
+    enable = true;
+    efiSupport = true;
+    device = "nodev";
+    configurationLimit = 32;
+  };
+
+  networking.hostName = "xv-laptop"; # Define your hostname.
+
+  users.users.xeovalyte = {
+    isNormalUser = true;
+    description = "Timo Boomers";
+    extraGroups = [ "networkmanager" "wheel" "dialout" ];
+  };
+
+  nix.settings.trusted-users = [ "root" "xeovalyte" ];
+
+  # Prevent system freeze on high load
+  services.earlyoom = {
+    enable = true;
+  };
+
+  boot.kernelPackages = pkgs.linuxPackages_latest;
+
+  system.stateVersion = "24.05";
+
+}

hosts/surface/home.nix

@@ -0,0 +1,69 @@
+{ pkgs, lib, ... }:
+
+{
+  imports = [
+    # Modules
+    ../../modules/home/default.nix
+  ];
+
+  options = {
+    host = lib.mkOption {
+      type = with lib.types; str;
+      description = ''
+        Define the host of the machine
+      '';
+    };
+
+    headless = lib.mkOption {
+      type = with lib.types; bool;
+      description = ''
+        Is this machine headless?
+      '';
+    };
+  };
+
+  config = {
+    home = {
+      username = "xeovalyte";
+      homeDirectory = "/home/xeovalyte";
+    };
+
+    host = "xv-surface";
+    headless = false;
+
+    settings = {
+      applications.common.enable = true;
+      applications.alacritty.enable = false;
+      applications.devenv.enable = false;
+      applications.firefox.enable = true;
+      applications.git.enable = true;
+      applications.helix.enable = true;
+      applications.zsh.enable = true;
+      applications.ssh.enable = false;
+      applications.thunderbird.enable = false;
+      applications.yazi.enable = true;
+      applications.zellij.enable = false;
+
+      services.nextcloud-sync.enable = true;
+
+      theming.fonts.enable = true;
+      theming.nix-colors.enable = true;
+
+      desktop-environments.hyprland.enable = false;
+    };
+
+    home.packages = with pkgs; [
+      # Desktop Applications
+      unstable.rnote
+
+      # Office
+      libreoffice
+    ];
+
+    # Enable home-manager
+    programs.home-manager.enable = true;
+
+    home.stateVersion = "24.05";
+  };
+
+}

modules/system/default.nix

@@ -20,6 +20,7 @@
 
     ./desktop-environments/cosmic.nix
     ./desktop-environments/hyprland.nix
+    ./desktop-environments/gnome.nix
 
     ./display-managers/default.nix
   ];

modules/system/desktop-environments/gnome.nix

@@ -0,0 +1,22 @@
+{ config, lib, ... }:
+
+with lib;
+
+let
+  cfg = config.settings.desktop-environments.gnome;
+in {
+  options = {
+    settings.desktop-environments.gnome.enable = lib.mkOption {
+      type = lib.types.bool;
+      description = ''
+        Enable gnome desktop environment
+      '';
+    };
+  };
+
+  config = mkIf cfg.enable {
+    services.xserver.enable = true;
+    services.xserver.displayManager.gdm.enable = true;
+    services.xserver.desktopManager.gnome.enable = true;
+  };
+}

modules/system/display-managers/default.nix

@@ -7,7 +7,7 @@ let
 in {
   options = {
     settings.display-manager = lib.mkOption {
-      type = lib.types.enum ["sddm" "cosmic-greeter"];  
+      type = lib.types.enum ["sddm" "cosmic-greeter" "gdm"];  
       description = ''
         Specify which display manager to use
       '';
@@ -17,5 +17,6 @@ in {
   imports = [
     ./sddm.nix
     ./cosmic-greeter.nix
+    ./gdm.nix
   ];
 }

modules/system/display-managers/gdm.nix

@@ -0,0 +1,12 @@
+{ lib, config, ... }:
+
+with lib;
+
+let
+  cfg = config.settings.display-manager;
+in {
+  config = mkIf (cfg == "gdm") {
+    services.xserver.enable = true;
+    services.xserver.displayManager.gdm.enable = true;
+  };
+}